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22226999 is a prime number
BaseRepresentation
bin101010011001…
…0100000110111
31112211020201012
41110302200313
521142230444
62112222435
7356632514
oct124624067
945736635
1022226999
1111601523
12753aa1b
1347b2c92
142d4830b
151e40b9e
hex1532837

22226999 has 2 divisors, whose sum is σ = 22227000. Its totient is φ = 22226998.

The previous prime is 22226989. The next prime is 22227019. The reversal of 22226999 is 99962222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22226999 - 24 = 22226983 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22226909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11113499 + 11113500.

It is an arithmetic number, because the mean of its divisors is an integer number (11113500).

Almost surely, 222226999 is an apocalyptic number.

22226999 is a deficient number, since it is larger than the sum of its proper divisors (1).

22226999 is an equidigital number, since it uses as much as digits as its factorization.

22226999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 41.

The square root of 22226999 is about 4714.5518344801. The cubic root of 22226999 is about 281.1643647761.

The spelling of 22226999 in words is "twenty-two million, two hundred twenty-six thousand, nine hundred ninety-nine".